package com.zelin.service;

import java.util.List;
import com.zelin.pojo.StudentExample;
import com.zelin.pojo.Student;
    /**
 * Created by WF on 2021/10/19 14:46
 */
public interface StudentService{


    long countByExample(StudentExample example);

    int deleteByExample(StudentExample example);

    int deleteByPrimaryKey(Integer sid);

    int insert(Student record);

    int insertSelective(Student record);

    List<Student> selectByExample(StudentExample example);

    Student selectByPrimaryKey(Integer sid);

    int updateByExampleSelective(Student record,StudentExample example);

    int updateByExample(Student record,StudentExample example);

    int updateByPrimaryKeySelective(Student record);

    int updateByPrimaryKey(Student record);

}
